@misc{indiciae024459c60856,
  title = {Pooled time series regression analysis in longitudinal studies.},
  author = {M M Ward and J P Leigh},
  year = {1993},
  doi = {10.1016/0895-4356(93)90038-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/8326350/},
  note = {Source identifier: 8326350}
}